Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
4676351Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 265
P-1
B1 = 4300000
B2 = 11204171550
ECM
DigitsB1Curves
2550000104 / 280
Estimated T-Level: 21.9 ⓘ
LL
StatusDateUserResidueShift
Verified1998-06-01Jan Otto Munch Pedersen25A8DF02289BB8230
Verified1999-12-15Will McCafferty25A8DF02289BB8233740074
History
DateUserTypeResult
2023-03-04Sid & AndyNF-PM1
B1=4300000, B2=11204171550
2021-11-03Aaron HavilandNF-PM1
B1=480000, B2=14400000, e=12
2021-03-24-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-21-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-21-Anonymous-NF
no factor from 2^69 to 2^70
2021-03-21-Anonymous-NF
no factor from 2^68 to 2^69
2018-10-18chuenkitNF
no factor from 2^67 to 2^68
2018-10-17YxinityNF
no factor from 2^67 to 2^68
2018-07-19BloodERazorNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-09snme2pm1NF
no factor from 2^65 to 2^66
2015-02-14monstNF
no factor from 2^64 to 2^65
2015-02-14JayderNF
no factor from 2^63 to 2^64
2013-06-10Squeeky_SquirrelNF-PM1
B1=145000, B2=2972500, E=6
2011-12-28GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-07-09markrNF
no factor from 2^61 to 2^62
2009-09-04Carsten KossendeyNF-PM1
B1=25000, B2=381250